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We live in NJ in a 2 story house built in 1963 and have occasional water in the basement and some mold growth to which I am allergic. We know that we need to deal with the basic issue of water in the basement by installing drainage outside, but I am underemployed (does anyone need a Coach to help with ADHD issues? -just kidding! ) so money is short and it is not top priority now.

**I am wondering if the combo of the 4" Aprilaire media filter and APCO UV air purifier is the way to go or not. I want to compare it to installing the Infinity Air Purifier instead, but don't see a way to do that comparison. Does the UV light alter or remove the mold enough that it will not recirculate and bother me even if it is dead?

From what our guy said, the maintenance cost is about equal. With mold and dust allergies, and animal dander to boot, which way would you go, or do you have another option that you feel would be superior?

The equipment and ductwork MUST be properly sized for it or you will not move the correct amount of air for the system to provide you with the comfort that you are paying for. Inadequate airflow can also lead to higher energy bills and shorter equipment lifespan.

Only a qualified professional can evaluate these things for you.

Check out out Contractor Locator map in my signature line if you want a second (or third) opinion on anything.

Check out out Contractor Locator map in my signature line if you want a second (or third) opinion on anything.

We've had three quotes, but the salesmen seem to be talking apples and oranges. No one has spoken about changing size of ductwork. Where would this be relevant? Intake or output, in the walls? Educate me, please.

We've had three quotes, but the salesmen seem to be talking apples and oranges. No one has spoken about changing size of ductwork. Where would this be relevant? Intake or output, in the walls? Educate me, please.

Since I cannot see your system from here, I cannot say if it is relevant or not.

Here is the short, sweet and simple.

To filter out more stuff, the filter has to be more restrictive to airflow. Restricted airflow in an HVAC system is NOT a good thing. It leads to stuff breaking.

If the system is designed for the more restrictive filter, then it will flow the correct amount of air. If not, stuff can break prematurely.

Did the salesmen do any testing of the current system? Did the do a manual J heat load calculation on your home to determine proper equipment size?

Or did they just say "well, your current system is this size, so it'll be fine."

My concern would be mold spore retention in the media filter. An electronic type air cleaner would probably be a better choice. Since the mold issue is seated in the basement area, properly sealed ductwork in this area would be what I would concentrate on. Mold spores being airborne and drawn into the return side of the system and distributed through out the structure would obviously raise havoc with any type of respiratory disorder.